/*
 * Copyright (c) JoinQuant Development Team
 * Author: Huayong Kuang <kuanghuayong@joinquant.com>
 *
 */

#include <iostream>

using namespace std;



int main(void)
{
    char buffer[] = "hello world";
    string s = buffer;
    cout << s << endl;

    string empty_s = string("");
    if (empty_s.empty()) {
        cout << "string is empty" << endl;
    }

    return 0;
}

